@article{MAN_1965__162_161335,
     author = {E.T. POULSEN},
     title = {Eindeutige {Hahn-Banach-Erweiterungen.}},
     journal = {Mathematische Annalen},
     pages = {225--227},
     year = {1965},
     volume = {162},
     url = {http://geodesic.mathdoc.fr/item/MAN_1965__162_161335/}
}